package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
@RequiredArgsConstructor
public class DishController {

    private final DishService dishService;
    private final RedisTemplate redisTemplate;

    @PostMapping
    @ApiOperation("新增菜品")
    public Result save(@RequestBody DishDTO dishDTO) {

        log.info("新增菜品: {}", dishDTO);

        dishService.saveWithFlavor(dishDTO);

        //清理缓存数据
        String key = "dish_" + dishDTO.getCategoryId();
        //redisTemplate.delete(key);
        cleanCache(key);

        return Result.success();

    }

    /**
     * 菜品分页查询
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO) {

        log.info("菜品分页查询: {}", dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);

        return Result.success(pageResult);

    }

    /**
     * @菜品批量删除
     * @param ids
     * @return
     */
    @DeleteMapping
    @ApiOperation("菜品批量删除")
    public Result delete(@RequestParam List<Long> ids) {

        log.info("菜品批量删除: {}", ids);

        dishService.deleteBatch(ids);

        //将所有菜品缓存数据都清理
//        Set keys = redisTemplate.keys("dish_*");
//        redisTemplate.delete(keys);
        cleanCache("dish_*");

        return Result.success();

    }

    /**
     * @根据id查询菜品
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品")
    public Result<DishVO> getById(@PathVariable Long id) {

        log.info("根据id查询菜品: {}", id);

        DishVO dishVO = dishService.getByIdWithFlavor(id);


        return Result.success(dishVO);

    }

    @PostMapping("/status/{status}")
    @ApiOperation("菜品停售起售")
    public Result<String> startOrStop(@PathVariable Integer status, Long id) {

        dishService.startOrStop(status, id);

        //将所有菜品缓存清理掉
        cleanCache("dish_*");

        return Result.success();

    }

    /**
     * @修改菜品
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO) {

        log.info("修改菜品: {}", dishDTO);
        dishService.updateWithFlavor(dishDTO);

        //将所有菜品缓存数据都清理
//        Set keys = redisTemplate.keys("dish_*");
//        redisTemplate.delete(keys);
        cleanCache("dish_*");

        return Result.success();

    }

    /**
     * @清理Redis缓存数据
     * @param pattern
     */
    private void cleanCache(String pattern) {

        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);

    }

}
